@misc{ae73bc4b-af76-4ac4-9a74-b38cd50e270d,
abstract = {A PV/T collector have been developed and evaluated at the department of Energy and Building Design at the<br/><br>
Technical University of Lund, LTH in Sweden. The PV/T, a “multifunctional solar window” made of PV cells<br/><br>
laminated on solar absorbers, is placed in a window behind the glazing. The solar window is built into a single<br/><br>
family house, Solgården, in Älvkarleö outside Gävle in the eastern part of Sweden. To reduce the costs of the<br/><br>
solar electricity, reflectors have been placed in the construction to focus the radiation onto the solar cells. In this<br/><br>
way expensive solar cells can be replaced by considerably cheaper reflector material. The tiltable reflectors give<br/><br>
the user a possibility to control the amount of radiation being transmitted into the building. The reflectors can<br/><br>
also be used to reduce the thermal losses through the window.<br/><br>
A model for electric and hot water production was developed. The simulation program, in Excel, can perform<br/><br>
yearly energy simulations where different effects such as shading of the cells or the glazing effects can be<br/><br>
included or excluded. The simulation can be run with the reflectors in an active, up right, position or with the<br/><br>
reflectors in a passive, horizontal, position. The simulation program was calibrated against a prototype window<br/><br>
placed in Lund in the south of Sweden and against the solar window in Solgården. The calculation model serves<br/><br>
as a basis for the module written for the simulation program TRNSYS. A “TRNSYS-deck” was built and<br/><br>
calibrated for the building Solgården.<br/><br>
Yearly simulations of the energy balance for a house with the solar window was compared to simulations where<br/><br>
the 16m2 solar window was replaced with an 8m2 normal window. The results show that the annual amount of<br/><br>
auxiliary energy is lower with a developed solar window, including low-e coating on the glazing, compared to<br/><br>
the normal window case. The developed solar window has considerable lower U-values than the existing solar<br/><br>
window.},
author = {Davidsson, Henrik and Perers, Bengt and Karlsson, Björn},
language = {eng},
pages = {44--51},
publisher = {ARRAY(0x7d70e80)},
series = {[Host publication title missing]},
title = {Performance of a multifunctional PV/T hybrid solar window},
year = {2008},
}